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G-Shock B5000/B5600 Smart Sync

Add smart functions to your Casio square BT G-Shock (B5600, B5000)
New in version 4.9
* Add Settings screen
* Update dependencies

This app integrates the Casio G-shock square digital Bluetooth watches (B5600, B5000 series), with Google services such as "Google Calendar" events and
"Google Alarm Clock". It also works as a remote control for your phone. It basically converts your traditional G-shock into a semi-smart watch.

Here are the supported watches:

https://tinyurl.com/y4r5xf94
https://tinyurl.com/yvnku2au

General
=======
The app works by sending commands to the watch via Bluetooth (BLE). The watch
data is not persisted on the phone, but instead is read from the watch each
time a connection is established. Any changes on the app are sent back to the
watch, only when the Send to Watch button is pressed.

Setting Time
============
The local time can be set from the main screen by pressing the Send to Watch
button next to the current time display. The app uses your current location to
get the local lime. You can then set the watch time accordingly, without having
to change your World Time selection on the watch.

This screen also shows your Home Time location and battery level.

Alarms
======
The B5600/B5000 watches have 5 alarms and a Signal or chime setting. They are first read
from the watch, and displayed in the app. The alarms can be updated by pressing
on the time display of each alarm. A dialog will appear which allows you to
select the time.

Once the alarms have been set, you can send them to the watch, or send them to
the Alarm Clock app on the phone. Unfortunately, there is currently no way to
read the alarms from the AlarmClock app programmatically, so we cannot set the
watch alarms from this app. However, we can set the Alarm Clock app with the
watch's alarms.

Events
======
Make sure you have set your phone to auto-sync to your google account.
Otherwise, adding events in your phone will not be reflected to the Google
account, and you will not be able to see the events in the app.

This screen displays Events from your Google Calendar and allows you to send
these events to the watch's reminders. (don't confuse these with reminders in
the Google Calendar app. These reminders are special features and are not
accessible programmatically).

There are many ways to set calendar events in Google Calendar. Events could be
one time, repeating daily, weekly, monthly or yearly, or some complex period
such as every second Thursday of the month. There are also events which occur
number of times only (count events), like repeat this event 12 times every
Monday. Not all event types can be supported on the watch, but this app
attempts to adopt the calendar events to the watch as much as possible. The
only not supported event types are daily and complex events, such as every
second Thursday of the month. Count events are simulated on the watch with
a start and end date, matching the event start time, count and frequency.
In case the calendar event cannot be adopted to a watch reminder, the app
will display the event as Incompatible. Only future events and recurring
events which have not expired are displayed.

The watch only supports all-day reminders. However, if the Google calendar
event has a specific time, it will still be used as a day reminder on the watch.

Actions
=======
The selected actions are run when the user short-presses the lower-right watch
button from disconnected mode (initial screen).

Using these actions, the watch acts like a remote control for your phone.


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Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 4.9 (49) suggested Added on 2022-09-23

    This version requires Android 8.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • access Bluetooth settings
      Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • connect to paired Bluetooth devices
      Allows the app to connect to paired Bluetooth devices
    • discover and pair nearby Bluetooth devices
      Allows the app to discover and pair nearby Bluetooth devices
    • set an alarm
      Allows the app to set an alarm in an installed alarm clock app. Some alarm clock apps may not implement this feature.
    • com.android.alarm.permission.DISMISS_ALARM
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • directly call phone numbers
      Allows the app to call phone numbers without your intervention. This may result in unexpected charges or calls. Note that this doesn't allow the app to call emergency numbers. Malicious apps may cost you money by making calls without your confirmation.
    • run foreground service
      Allows the app to make use of foreground services.
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • org.avmedia.gshockGoogleSync.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.

    Download APK 7.2 MiB PGP Signature | Build Log

  • Version 4.6 (46) - Added on 2022-09-21

    This version requires Android 8.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • access Bluetooth settings
      Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • connect to paired Bluetooth devices
      Allows the app to connect to paired Bluetooth devices
    • discover and pair nearby Bluetooth devices
      Allows the app to discover and pair nearby Bluetooth devices
    • set an alarm
      Allows the app to set an alarm in an installed alarm clock app. Some alarm clock apps may not implement this feature.
    • com.android.alarm.permission.DISMISS_ALARM
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • directly call phone numbers
      Allows the app to call phone numbers without your intervention. This may result in unexpected charges or calls. Note that this doesn't allow the app to call emergency numbers. Malicious apps may cost you money by making calls without your confirmation.
    • run foreground service
      Allows the app to make use of foreground services.
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.

    Download APK 7.1 MiB PGP Signature | Build Log

  • Version 4.4 (44) - Added on 2022-09-04

    This version requires Android 8.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • pair with Bluetooth devices
      Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.
    • access Bluetooth settings
      Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • connect to paired Bluetooth devices
      Allows the app to connect to paired Bluetooth devices
    • discover and pair nearby Bluetooth devices
      Allows the app to discover and pair nearby Bluetooth devices
    • set an alarm
      Allows the app to set an alarm in an installed alarm clock app. Some alarm clock apps may not implement this feature.
    • com.android.alarm.permission.DISMISS_ALARM
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • directly call phone numbers
      Allows the app to call phone numbers without your intervention. This may result in unexpected charges or calls. Note that this doesn't allow the app to call emergency numbers. Malicious apps may cost you money by making calls without your confirmation.
    • run foreground service
      Allows the app to make use of foreground services.
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.

    Download APK 7 MiB PGP Signature | Build Log